KR101044267B1 - How to produce a contactless ticket containing a chip - Google Patents

Abstract

The present invention relates to a method of producing a contactless ticket or card through a number of steps, which are comprised of a chip 24, which is connected to an antenna 10 on a paper carrier. The progressive method consists of the following steps; The antenna is printed continuously on a paper carrier strip using silkscreen ink; The chip is fixed to each ticket by connecting the bond pads of the chip and the bond pads 14 and 16 of the antenna; A paper strip composed of silkscreen-printed antennas and corresponding chips is covered by an adhesive paper strip; After each step, the paper carrier strip ends before the next step begins. The inventive method also provides a protective layer 12 to prevent the silkscreen ink from being transferred to the back of the paper carrier strip during each continuous wind-up at each stage followed by each silkscreen-printed antenna. The method of making into a coating by the structure) is also included.

Contactless ticket, contactless card

Description

METHOD FOR PRODUCING A CONTACTLESS TICKET COMPRISING A CHIP}

The present invention relates to a method of manufacturing a ticket with a chip and a screen-printed antenna, in particular to a method of manufacturing a contactless ticket and a ticket produced by such a method.

 Contactless, radio frequency identification (RFID) -type electronic tickets, more commonly known as contactless readable tickets or contactless readable tags, are equipped with an integrated circuit in the form of an antenna and an electronic chip connected to the antenna, The unit is produced on a flexible support. Contactless-type electronic tickets can exchange or transmit data over long distances via inductive coupling, using their antennas with a reader equipped with an antenna. The flexible support is made of paper, card or plastic. To make the ticket economical, the antenna is printed by screen printing. Screen printing consists of printing an antenna coil using conductive ink on an electronically insulated circuit board made of paper, where the conductive ink consists mainly of silver powder, for example. It is possible to use a continuous manufacturing method for manufacturing a ticket with a screen printed antenna.

Accordingly, Applicants have personally developed a manufacturing method in which screen printing of an antenna can be carried out on one side of an endless paper strip, the width of which enables the manufacture of one or more tickets. On the opposite side of the paper strip on the side that contains the antenna, a printed mark or a hole marker creates a feed direction of the paper strip, which is a row of tickets each of which tickets and paper strips can be located. It is an area where (row) is possible to enable communication. These markers are essential to the method of continuously making a ticket. Indeed, in each ticket manufacturing step, the exact position of each ticket is located in the paper strip being completely unwound and rewound so that it can be handled and stored between the two manufacturing steps. Therefore, in the method of continuously producing a contactless ticket, the printing of the client illustration, the printing of the antenna, the installation of the chip and the pre-printed layer and the client illustration on the ticket side including the antenna and the chip are performed. It will be broken through the many steps that make up the final lamination step. It is necessary to go through several steps in printing the antenna. In practice, the production of antennas involves printing antenna coils that form a conductive spiral, producing dielectric strips perpendicular to the coil and printing conductive ink bridges on derivatives, where one end of the antenna Configure the end of the connection used to provide an electronic connection.

Configuring the positioning of the electronic chip over a ticket at a given location to connect with the antenna constitutes a key step in manufacturing the ticket and requires a high level of accuracy. The chip is already on the opposite side of the antenna's support and the marker is positioned exactly where desired as a result of optical detection of the marker. However, positioning can be done incorrectly, in which case the chip will have a faulty connection with the antenna. Markers are also used to cut strips into unit tickets.

The main disadvantage of this continuous manufacturing method is that the silver ink constituting the antenna is transferred to the back of the paper strip by friction during the continuous winding and unwinding processes necessary to complete the ticket production. The backside of the paper strip is preprinted with client illustrations and visible marks, which can also be seen as naked eyes, and on the client illustrations, it consequently impairs the aesthetic quality of the ticket. Furthermore, the delivery of ink may cover the back of the paper strips with markers that correspond to the area of the antenna and thus interfere with optical position performance during ticketing and distribution. Thus, configuring the chip positioning and cutting the ticket can cause failure and reduced ticket yield.

It is therefore an object of the present invention to continuously manufacture a non-contact ticket on an endless strip which allows the production of an antenna by printing a conductive ink screen without the addition of frictional ink transfer to the back of the strip without adding additional ticket manufacturing steps. It is in overcoming these drawbacks by providing a method.

Accordingly, an object of the present invention is for a multi-step manufacturing method of a contactless ticket or a card, the method comprising continuously printing an antenna on a paper support strip using screen printing ink, bonding pad of the chip and bonding pad of the antenna ( Fixing the chip on each ticket by connecting 14, 16, and covering the paper strip including the screen printed antenna and the chip corresponding to the antenna with an adhesive paper strip, Each of the steps further comprises the steps of a contactless ticket or card comprising a chip 24 connected to the antenna 10 on the paper support, further comprising the step of winding the paper support strip before moving to the next step. In a multy-step production method, the method comprises a protective layer formed by printing, in particular by screen printing. Covering each of the screen printed antennas, wherein the protective layer prevents the screen printing ink from being transferred to the back side of the paper support strip during subsequent windings after each step. It is characterized by being provided.

 BRIEF DESCRIPTION OF THE DRAWINGS Fig.

1 shows an antenna of a contactless ticket produced with screen printing ink,

2 shows an antenna covered with a dielectric protective layer produced in accordance with the principles of the invention;

3 shows a ticket of a screen-printed antenna covering the dielectric layer followed by connecting the antenna ends to secure the chip.

 Detailed description of the invention

In the method of manufacturing a contactless ticket according to the present invention, each step constitutes performing the same work on an endless strip, the width of which makes it possible to manufacture one or more tickets at the same time (for example 6 tickets). . When all these steps are executed, cutting takes place to obtain individual tickets.

Prior to the first step of the manufacturing method, a rotating portion of the length of the flat paper strip is installed in the manufacturing machine. The rotating part is unwound to perform the first step that comprises producing the antenna 10 with screen printing using the silver-based ink shown in FIG.

The next step, again by screen printing, consists in depositing the protective layer 12 covering the antenna 10. In the preferred embodiment shown by FIG. 2, the protective layer is covered over the entire surface of the antenna 10 to cover the back portion. However, such an embodiment can be designed such that the protective layer only covers the antenna turn, i.e., makes its exact stamp. In a more preferred embodiment, the protective layer is a dielectric layer.

The purpose of this protective layer is to prevent frictional transfer of the ink constituting the antenna 10 fixed on the paper strip during the continuous winding of the strip following the screen printing step.

As also mentioned above, such delivery can impair the aesthetic quality of the ticket and can cover the marker placed on the back of the strip, thereby obstructing the optical position.

The dielectric layer has two characteristics. First, do not cover the ends 14 and 16 of the antenna that will be used as the chip connection. Secondly, the single-step screen printing of the derivative is not the same as rectangle 18, and in the next step, a conductive strip will be printed that connects the end 14 of the antenna with the bonding pad of the chip.

Dielectric layer 12 is preferably printed during steps such as antenna screen printing to prevent delivery of ink to the back of the ticket. However, the printed layer of such a dielectric layer can be implemented in successive steps, for example after winding a screen printed script with an antenna.

As already mentioned, printing the dielectric layer is different from rectangle 18 covering the coil of the antenna. Indeed, the single purpose of the layer of dielectric of the entire antenna is to prevent ink from being delivered to the back of the ticket, while the purpose of the dielectric of rectangle 18 is to insulate the coil of the antenna from the conductive strip 20 shown in FIG. will be. Such rectangles are therefore not necessarily required for all dielectric layers produced for protective purposes but must be completely electrically insulated. One preferred technique consists in using a printing screen, most of which is printed in half-tone except for portions corresponding to rectangle 18, which is a full-tone screen. This covers 100% for rectangle 18 and only 30% of the remainder of dielectric layer 13 can be dielectric.

After the strip has been rewound, the method that proceeds to the next step is, for example, screen printing from the conductive strip antenna to the chip, such as the conductive strip 20 from the end 14 of the antenna 10 and the conductive strip 22 from the end 16 of the antenna. Configure As shown in FIG. 3, this secures the bonding pads of the chip to the ends of the conductive strips 20 and 22, thereby enabling the connection of the chip 24 in subsequent steps.

It should be noted that screen printing of conductive bands 20 and 22 after printing protective dielectric layer 12 does not pose the same ink transfer problem as the antenna. Indeed the longitudinal coil of the antenna is located on another turn after winding, thus creating an excess thickness, thus increasing the risk of transferring to the back of the ticket due to the pressure caused by the friction of the ink in the excess thickness. In contrast, in both the conductive strips 20 and 22, with reduced dimensions, the rotating parts are not equally located from the winding of the strip. Therefore, there is no excess thickness, and therefore there is no risk of frictional transfer of ink going to the back of the ticket.

Although the present invention is described in relation to the manufacture of paper tickets, it can also be applied to the manufacture of contactless cards or any other contactless-type material (labels, tags, etc.), whose antennas are produced using screen printing inks. do.

Claims (6)

Continuously printing the antenna on the paper support strip using screen printing ink, securing the chip on each ticket by connecting the bonding pad of the chip and the bonding pad of the antenna, and the screen with adhesive paper strip Covering the paper strip comprising a printed antenna and a chip corresponding to the antenna, wherein each of the steps further comprises winding the paper support strip before moving to the next step. In a multi-step manufacturing method of a contactless ticket or card comprising a chip 24 connected to an antenna 10 on a support, The method further comprises the step of covering each of the screen printed antennas with a protective layer formed by printing, in particular by screen printing, wherein the protective layer is formed by each printing the antenna with the screen printing ink. And a continuous winding after the step to prevent transfer to the back side of the strip of paper support, wherein the protective layer is a dielectric layer. delete 2. The method of claim 1, wherein the dielectric layer is printed using screen printing ink in the step of screen printing an antenna on the paper support. 4. A portion 18 of the dielectric layer 12 for receiving conductive strips connecting the ends of the screen printed antenna 10 to the bonding pads of the chip 24, according to claim 3 A multi-stage manufacturing method for a contactless ticket or card comprising a chip, characterized in that it is larger than a portion. 5. The portion of the dielectric layer 12 for receiving the conductive strip is comprised of 100% dielectric, while the remaining portion of the dielectric layer is comprised of 30% dielectric. Multi-step manufacturing method of a contactless ticket or card comprising a chip. 6. The screen printing of claim 5, wherein the screen printing used to produce the dielectric layer 12 comprises a full-tone screen corresponding to the portion 18 for receiving the conductive strips. On the other hand, wherein the remaining portion of the dielectric layer is half-tone printed.

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